关于蛋白质对粉消化能力影响机制的研究 在发酵大麦中
Mengting Liu1, Tao Liu1, Jiayan Zhang1
1School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
Journal of agricultural and food chemistry
|September 30, 2024
概括
发酵的小麦大麦.
科学领域:
- 食品科学 食品科学 食品科学
- 营养生物化学 营养生物化学
- 农业科学 农业科学
背景情况:
- 发酵大麦表现出较低的粉消化率.
- 非粉成分对这种抗消化能力的影响尚不清楚.
研究的目的:
- 研究非粉成分,特别是蛋白质在发酵大麦粉消化能力降低中的作用.
- 阐明蛋白质抑制粉消化的机制.
主要方法:
- 分割发酵大麦以去除蛋白质,脂质和β-葡萄糖.
- 对粉水解速率的分析.
- 粉物理化学性质的表征 (膨胀力,分子结构,粒子形态).
主要成果:
- 蛋白质,脂质和β-葡萄糖的去除显著增加了粉水解率,蛋白质具有最实质性的效果.
- 蛋白质去除导致粉膨胀能力增加,短距离分子秩序和螺旋结构减少.
- 减少蛋白质减少了粉颗粒的涂层和大小,分散了马耳他十字结构.
结论:
- 发酵大麦中的蛋白质通过增强粉的有序结构并创建物理屏障来抑制粉水解.
- 这种蛋白质介导的结构修改阻止了粉的扩张,从而降低了它的消化能力.
相关概念视频
Carbohydrate Digestion
114.2K
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
114.2K
Introduction to Carbohydrates
12.4K
Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
12.4K
Sugars as Energy Storage Molecules
8.4K
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
8.4K
Carbohydrate Absorption
566
Carbohydrates are essential macronutrients that serve as the body's primary energy source. Their digestion begins in the mouth, where salivary amylase partially breaks down complex carbohydrates such as starch into smaller oligosaccharides. This mechanical and enzymatic activity prepares carbohydrates for further processing in the gastrointestinal tract.
After being swallowed, the partially digested carbohydrates mix with gastric secretions in the stomach. However, the acidic environment...
After being swallowed, the partially digested carbohydrates mix with gastric secretions in the stomach. However, the acidic environment...
566
Hormonal Regulation
43.2K
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
43.2K
Carbohydrate Metabolism
10.8K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
10.8K


